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Table of Contents
Related Manuals for NAD S250
Summary of Contents for NAD S250
- Page 1 S250 FIVE CHANNEL POWER AMPLIFIER...
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Page 2: Table Of Contents
CONTENTS FRONT PANEL / REAR PANEL VIEW ........3 SPECIFICATIONS . -
Page 3: Front Panel / Rear Panel View
FRONT PANEL / REAR PANEL VIEW RETURN TO CONTENTS FRONT PANEL CONTROLS NA D Five Channel Power Amplifier S250 PROTECTION SOFT CLIPPING 1. POWER SWITCH 3. PROTECTION INDICATOR 2. POWER INDICATOR 4. SOFT CLIPPING INDICATOR The graphic symbol of a lightning flash with an arrow point... -
Page 4: Specifications
RETURN TO CONTENTS SPECIFICATIONS S p e c i f i c a t i o n s a r e m e a s u r e d i n a c c o r d a n c e w i t h I H F s t a n d a r d I H F - A - 2 0 2 , 1 9 7 8 . NOMINAL LIMIT 1. -
Page 5: Alignment Procedure / Alignment Points
RETURN TO CONTENTS ALIGNMENT PROCEDURE IDLE CURRENT ALIGNMENT FOR EVERY POWER AMPLIFIER MODULE 1. Remove the load and the input signal. 2. Connect a digital voltmeter between TP1 and TP2. 3. Switch the amplifier on and, after one minute, adjust R27 to obtain a reading of 5mV ±0.5mV. -
Page 6: Wiring Diagram
WIRING DIAGRAM RETURN TO CONTENTS GRN-YEL (230V ONLY) BLU (120V) BLU (230V) BLU (230V) BRN (230V) BRN (230V) BRN (120V) - Page 7 RETURN TO CONTENTS PSU BOARD - COMPONENT SIDE Enter 200 to ZOOM PSU BOARD - SOLDER SIDE...
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Page 8: Pcb Layout
RETURN TO CONTENTS PCB LAYOUT AMP BOARD - COMPONENT SIDE AMP BOARD - SOLDER SIDE... - Page 9 RETURN TO CONTENTS POWER SUPPLY...
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Page 10: Schematic Diagram
RETURN TO CONTENTS SCHEMATIC DIAGRAM POWER AMP 1... - Page 11 RETURN TO CONTENTS POWER AMP 2...
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Page 12: Electrical Parts List
RETURN TO CONTENTS ELECTRICAL PARTS LIST Location Part Number Description POWER AMP PCB PCB ASSEMBLY 1000*AH PCB-N0920C-AMP PCB ASSY POWER AMP 1000*C PCB-N0921C-AMP PCB ASSY POWER AMP CAPACITORS 150N-103M-5-SS CC 1KV 0.01u 20% RL 150N-121K-5-II CC 1KV 120P 10% RL 5X5 150N-270K-5-II CC 1KV 27P 10% RL 5X5 C4,C5... - Page 13 RETURN TO CONTENTS Location Part Number Description Q10,Q26 4860-8890-0 TR MPSA06 VCE 80V NS Q11,Q27 4860-8910-0 TR MPSA56 VCE 80V NS VR71 4750-9606-1 VR RK09K111 50KA LM=25mm SVR27 4755-1026-3-14 SVR 1K EVM-31G 6mm DUST FUSE F1,F2*AH 5120-0040-0 FU T6.3A 250V 5X20 UL F1,F2*C 5120-0025-0 FU T6.3A HBC 5X20...
- Page 14 RETURN TO CONTENTS Location Part Number Description FH1*C 4132-1011-0 FUSE HOLDER GND1 4132-6221-0 BRACKET, GROUNDING TRIGGER SW PCB PCB ASSEMBLY 1200 PCB-N0920C-SW PCB ASSY TRIGGER SWITCH WAFERS/JACKS 2101-2191-0 DC JACK 3.5 2102-081R-004 8 PIN RIGHT ANGLE WAFER RESISTOR 4715-472A-2 RMF 1/4W 4.7K 1% AT SWITCH SW02,SW03 5200-3251-0-01...
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Page 15: Exploded View
RETURN TO CONTENTS EXPLODED VIEW... -
Page 16: Exploded View Parts List
RETURN TO CONTENTS EXPLODED VIEW PARTS LIST Location Part Number Description Quantity S100-2011-3 POWER BUTTON S250-2002-1 FRONT PANEL S250-2003-3 SUBFASCIA S250-2014-3 LEFT SIDE PANEL S250-2024-3 RIGHT SIDE PANEL 6*AH S250-2006-2 REAR PANEL 120V S250-2006-2 REAR PANEL 230V S250-2057-1 REAR PANEL BAR B... -
Page 17: Packing Diagram
RETURN TO CONTENTS PACKING DIAGRAM REF. NO. PART NUMBER DESCRIPTION QTY. 8700.0058 LEFT CUSHION 8700.0059 RIGHT CUSHION 8700.0057 WRAPPING SHEET 860129 INNER CARTON BOX 860135 OUTER CARTON BOX 8120.0189 WARRANTY CARD 8100.0174A OWNER’S MANUAL 8700.0056 GLOVES 1 PAIR 39*AH 4150.0009 POWER CORD 120V 39*C 4150.0011... - Page 18 Pickering, Ontario Canada L1W 3K1 No portion of this publication may be reproduced without the written permission of NAD Electronics International. Many of the circuits and software programs described within are covered by patents and other international property laws and are used with express permission or license agreements from the owners.